SAN replication for fault tolerance

Similar Questions

• SAN with VMware Fault Tolerance storage redundancy

  We built a new data center, with the idea in mind to use VMware Fault Tolerance to create a virtual environment without service interruption between two data centers.  The goal is to have the VMs to continue to operate even with the loss of access to an entire datacenter, including SAN storage units.

  I'm looking for a way for a vSphere 4 virtual infrastructure to be able to write to storage replicated in two different datacenters (with low latency of connections between data centers).  We can do with the networks and host servers, but I found nothing in the documentation of tolerance to failures to mention something else 'shared storage' we have experienced a failure of the individual units of SAN storage (including total loss of hundreds of virtual machines) and hope that we can eliminate the unit of storage as a single point of failure.

  Someone did he do it, or how it could be done?

  Hello

  In order to clarify what idle-jam talks about, you can watch this video of HP and VMware on YouTube.

  -hth

  Kind regards.

• Is it possible to install oracle fail-safe-kind-of (active-passive) SAN replication for oracle?

  Dear Experts,

  Is it possible to configure replication of SAN (active-passive) integrated security for oracle for oracle?

  To get the RTO < 60 seconds

  • If the primary host fails, the remote site should have the option to start the oracle database.
  • Sites are geographically remote.

  SAN storage replication, can it be used in my scenario?

  • I have no option to implement oracle Data Guard as its very expensive.

  Is that what someone achieved something similar with SAN storage replication?

  • I have oracle SE.
  • It is obvious that the all-flash backup can be quick.

  What should be the strategy to have DR site get a few seconds, if the primary site failed for some reason any

  • Daily incremental backup with RMAN. And archive backup runs for every 1 minutes
  • To have the site of DR upward and running within 60 seconds, it still requires too much time to restore the database on remote site and have archive APPLIED setpoint
  • What could be the solution with san replication? RTO is 60 seconds

  Thanks and greetings

  SAN storage replication, can it be used in my scenario?

  I have no option to implement oracle Data Guard as its very expensive.

  --> If you want to use the data that it is free of CHARGE, additional license is not required for normal data guard

  --> additional license is only for the ADG

  Is that what someone achieved something similar with SAN storage replication?

  I have oracle SE.

  It is obvious that the all-flash backup can be quick.

  --> Here, I understand that if oraclle EA is going to be expensive

  --> Again, you can use manual standby

  --> What you are looking for SAN replication, you will need to check with the storage vendor

  --> If your intention is to check with oracle storage, then this may be the correct discussion room

  What should be the strategy to have DR site get a few seconds, if the primary site failed for some reason any

  Daily incremental backup with RMAN. And archive backup runs for every 1 minutes

  To have the site of DR upward and running within 60 seconds, it still requires too much time to restore the database on remote site and have archive APPLIED setpoint

  What could be the solution with san replication? RTO is 60 seconds

  --> If your intention is to check with oracle storage, then this may be the correct discussion room

  Check in this

  https://community.Oracle.com/community/Server_%26_storage_systems/storage

• Needs of configuration for Fault Tolerance (FT)

  Hello

  I would like your advice for the configuration of FT.

  In "vSphere availability Guide", it says "VMware recommends that you have a minimum of three hosts in the cluster.  He also says his only 'recommendations '.

  in another day, I heard that VMware has written "FT is supported although its configurations are 2 ESXs in the cluster.  ".

  But really, I can't imagine how works FT with only 2 ESXs.

  in FT, esx primery send 'Treaty logging' to the secondary, secondary esx esx do the work and send acknowledgements to the esx primery and SEPARATOR do the work finally

  Once esx primery is down, secondary esx become primery and third esx (one spare) become secondary. I think how FT is.

  But if FT cluster contains only 2 ESXs, after the failure of SEPARATOR ESXs, the FT cluster has only one ESX (which is primery?). ESX primery can do the job only after he receive receipts.

  but in this situation (FT has only 2ESX and SEPARATOR cluster is failed), there is no secondary esx so that means SEPARATOR cannot receive acknowledgements and cannot do the work.

  Here are my questions, how can we FT works if FT cluster contains only 2 ESXs?

  The entire function of FT is to keep your VM up to 100% of the time with down at any time by making a copy somewhere it is almost ready to begin.

  Now, he does this by making a copy on a different host, but is not enabled. As do an on the VM vmotion but stops at 99% and then waits.

  If you have only 2 host and it fails, then once the 2nd host resumes the next step is to make a copy of what he can't do because it doesn't have another host.

  In a cluster of 3 host

  host 1 has direct VM and host 2 copy

  Host 1 died 2 host becomes live VM and then made a copy of the FT on host 3

  He always wants to make a copy of the living host, in order to have 3 is recommended, but in a host of 2 cluster it cannot make the copy... and therefore more FT, but your VM will always run.

• 6.0 Update 01 vSphere fault tolerance

  Hello everyone,

  I have a problem whene I activate Fault Tolerance on dv01.

  It is the configuration of my physics

  • 2 ESXi 06 update01 build 3073146
  • 1 cluster HA active
    • Ordered admission disabled
    • Disabled DRS
  • 1 with port configuration of vMotion group vDS
  • 1 starndar vSwitch for Fault Tolerance with 2 x Intel® Ethernet Converged Network Adapter X 520 - T2 10 Gbps
  • e

  Dv01 Config

  • 4 vCPU
  • 3 ramdisk stored a first shared data store datastore01 1.35 to:
    • Reset Eager 136 GB Thik provisioning
    • 500 GB Thik provisioning eager to zero
    • 600 GB Thik provisioning eager to zero
  • connected to the port vDS group 1 VMXNet3 network adapter
  • latest VMware tools installed
  • Guest OS Windows Server

  When activated the fault tolerance, I chose the ESXi02 and second datastore02 shared data store 1.28 at: the vmdk and vmx file is created successfully and I free 44Go on the datastore02 of a second.

  But whene I try to turn on this dv01 I have this error

  • vCenter car not power on the secondary VM
  • and whene I look on the event, the error is not "enough space for the secondary virtual machine."

  Can someone help me, please to fix this whene I enabled FT on litle VM02 with 1 thin vdisk, is working but for dv01 is not work

  THX in advance

  Best regards

  Hi DZinit,

  The computation of the space you need on the second data store, you take the file vswp into account. This will generate enough to on and be equal to the size of RAM allocated to the VM.

• You can install vCenter as a virtual machine with fault tolerance

  The benefits of having vCenter as a virtual machine are features such as HA and snapshots, is there a problem with having a fault tolerance enabled on a virtual machine that is the vCenter server to manage fault tolerance?

  He couldn't see in the documentation for fault tolerance limits

  Well...

  vCenter lists 2 CPUs as required and FT only works with one...

  -Matt

  VCP, vExpert, Unix Geek

• Cannot access the fault tolerance Mode

  Dear all,

  I have a problem, which allows VMware ft. I have 2 IBM eServer HS12 blade with IntelCore 2 Duo E6305 CPU @ 1.86 GHz

  When I turn on the machine virtual of FT it gives the following error.

  Recording/playback is supported for VMS 64-bit only on some processors. Abandonment of record/replay. Unable to access the mode for fault tolerance.

  Are there settings that I need to do on the host VMware ESX or VM.

  Kind regards

  Rahiz

  Rahiz,

  According to the Knowledge Base the CPU is not supported for the fault tolerance

  .

  Take a look at the Article KB 1008027 - processors and operating systems that support VMware Fault Tolerance

  André

• SAN multisite and VMware Fault Tolerance

  Hello

  My apologies if this is in the wrong section.

  I have a requirement for the two main rooms, with SAN and ESX hosts in each room.

  In total I have, for the sake of arguments, 200 VMS, with a split 50-50, so 100 in each room Basic.

  I want to use VMware of fault tolerance for machines remain operational in the event of a major failure or the other room Basic.

  I think I can use Multisite SAN to do.

  Please see attached diagram fo what I want to do, I know that the diagram is not correct but I drew it fast just to try to explain the scenario.

  What I want to know (or have help on) is:

  Is it possible to use fault tolerance in this way have no downtime in the result of a failure of basic room? (basic rooms are not very remote and use the same networks)

  How does multi-site SAN work, are there articles I can read to help me understand this?

  Multisite perhaps SAN iSCSI or fibrechannel?

  Thank you.

  SAN should resemble a single San for all ESXes. It doesn't matter how you do it.

  > If I my synchronous SAN mirror, might simply use FT for the vcenter as well?

  It is possible for the small environment. In general, vCenter requires 2 vCPU, while FT works for uniprocessor VMs only. But do not overestimate FT, it is not a universal solution and the universal answer.

  > Also with FT, can you specify the server host in the cluster to act as the secondary?

  Directly - no. The only way - to create link VM to any resource that is available for 2 ESXes only.

  ---

  MCSA, MCTS, VCP, VMware vExpert 2009

  http://blog.vadmin.ru

• Windows for the issue of fault tolerance

  I counted on 4 virtual machines running in a fault-tolerant environment.

  I'm reading that I should get 2, Windows server 2008 R2 Ent. licenses because they are counted as separate servers (even if they are just redundent).

  Is this true?

  Do you mean 4 virtual machines protected with VMware Fault tolerance (FT) or using HA to protect an ESXi host failure?

  Windows Enterprise gets you 4 total licenses for virtual machines but it is authorized by the ESXi host. So if you have two hosts of ESXi, you would need two copies of Windows Enterprise to protect the 4. VMs data center total is something much better, if you plan to have more than 4 VMs.

• Site/SAN continuous fault tolerant Site/SAN

  We have a client who is seeking the following expected results.

  1. He has several Web servers and a SQL Server that it houses a ton of jpg (over 2 GB) and grow about 500 g/day

  2. he wants to place its jpg files on a Dell EqualLogic SAN on his site

  3. he wants to have a failover site that replicates as fast as it can get data on its current SAN on his site

  Here's the question: If install us an EqualLogic SAN to its location off site and implement the SAN replication with Site Recovery Manager (since its offsite location is in another State), it will be able to replicate its data/files jpg every 15-30 min?  AND, where its site is a disaster, the remote site can locate production a few minutes so that its operation is not disrupted?

  If so, how this is done?  Require an Enterprise + licenses to encorporate FAILOVER operations?

  First of all, a disclosure. I work for Neverfail.

  There are some other points to consider

  (1) don't forget 'restoration', how will be displaced operations back to the original site?

  (2) Neverfail has in-band, de-duplication WAN acceleration function that could help with the limitations of bandwidth.

  (3) are all applications on physical servers involved. SRM will only failover virtual machines.

  Let me know if you want to discuss further.

• Non supported configuration of virtual machines for the fault tolerance. The operation is not supported on the object. When activating FT

  Hello

  I try to activate FT on a virtual machine that AFAIK ticked all the boxes for FT but I get this message when activating it. No clue as to what might happen or where to connect for extended information? This error message is too generic...

  Thanks in advance mates.

  Did you follow KB1019165-fault tolerant to fails to 42% with the error: not supported configuration of virtual machines for the fault tolerance

  André

• Snapshots for virtual machines fault-tolerant

  VSphere availability guide says that you can not fault tolerant VMs snapshot. Otherwise, how would a backup virtual machines?

  If you need to snap for backup, you can stop FT, do the blink of an eye, make the backup, delete the snap and reactivate FT.

  You cannot schedule directly (in the special section), but there are useful scripts that can toggle pi of CLI.

  André

• What are the requirements\limitation for configuration of fault tolerance?

  What do I need to do properly configured?

  Here are a few good links providing the requirements and details:

  http://KB.VMware.com/kb/1010601

  http://communities.VMware.com/blogs/vmroyale/2009/05/18/VMware-fault-tolerance-requirements-and-limitations

  =========================================================================

  William Lam

  VMware vExpert 2009

  Scripts for VMware ESX/ESXi and resources at: http://engineering.ucsb.edu/~duonglt/vmware/

  repository scripts vGhetto

  VMware Code Central - Scripts/code samples for developers and administrators

  http://Twitter.com/lamw

  If you find this information useful, please give points to "correct" or "useful".

• for vmware esxi fault tolerance specifications 5

  Can someone tell me where I can find documents to show me the fault tolerance support in version 5?  Are we still liminted to 1vcpu?  How many virtual machines can be set to feet?

  Hello.

  Not much changed. I keep it updated constantly:

  http://communities.VMware.com/blogs/vmroyale/2009/05/18/VMware-fault-tolerance-requirements-and-limitations

  Good luck!

• Fault tolerant on VMware linked clone Desktop

  Hello

  someone may answer whether it is possible to enable fault tolerance on linked clone VM to a master, through composer.

  Client wants to protect in this way, hundreds of virtual office, I thought about using a channel 10 gigabit for the communication of FT logging, that think u dou everything?

  Thank you very much

  First off it is only recommended to have 4 FT running for each host, so would need you 25 hosts make 100 mV.

  Secondly, I am sure that this is taken care with view.

  Thirdly, also sure FT requires full VMs, clones and unrelated, so your cost of SAN will rocket sky.

  Fourth and this is my favorite, it is exteremly high Windows going down until your host blocks (ESX breaks down).  FT no help even in this situation as if OS1 block him operating system on the other server will crash at the same time.

  FT is designed for mission critical Server VM, not of VDI.

  Gunnar